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SASH HOLDER.

(NOM0de1.) I F H. A. STONE. 1 N0. 258,611. Patented MwySO, 1882.

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Will/Ill! INVENTOR I BYUIWMWPI ATTORNEY WITNESES UNITED STATES PATENTOrrrcn- HENRY A. STONE, OF BROOKLYN, NEW YORK, ASSIGNOR TO ANDREWRANDELL, OF SAME PLACE.

SASH-HOLDER.

SPECIFICATION forming part of Letters Patent No. 258,611, dated May 30,1882.

Application filed October 17, 1881.

.To all whom it may concern Be it known that I, HENRY A. STONE, ofBrooklyn, in the county of Kings and State of New York, have inventedcertain new and useful Improvements in Sash-Holders; and I do herebydeclare thatthe following is a full, clear, and exact description of theinvention, that will enable others skilled in the art to which it ap-'spring-sustained double eccentric, as herein;

after more fully set forth.

This invention is illustrated in the accompanying drawings, in whichFigure 1 represents a front view. Fig. 2 is a vertical crosssection,showing the stop in a retracted position.

Similar letters of reference indicate corresponding parts.

The letter A designates the friction-stop, B the revolving cam, and Othe double'eccentrio constituting the working-face of the stop, theseveral parts named being arranged in a frame, I), which is fitted intoan appropriate portion of the windoW-casin g, a portion of which isshown at E, or into the sash. The stop A is hung on a pivot, 3, which isplaced outof the center thereof on the side nearest the front edge ofthe frame D, so that the stop has a tendency to fall away from such edgeto a retracted position by gravity; but this object can also beaccomplished by means of a spring. The cam B is situated rearward of thestop A, at the free end thereof, being fixed to (No model.)

an arbor, 4, which is arranged to receive akey or wrench, 5, for turningit.

In order to accommodate the stop A in its rear position, the cam B ismade in the form of a snail, as shown. The double eccentric G rocks on apivot, 6, in the stop A, projecting beyond the front edge of the latter,and it is subjected to the action of a spring, 7, which tends to sustainit in a normal or symmetrical position, as indicated in Fig. 2, thespring being placed at the back of the eccentric-receiving recess in thestop. The outer or hearing edge of the eccentric O is roughened orserrated to promote friction.

In applying the device to use, the cam B is turned to throw the stop Ainthe direction of the sash, and the eccentric 0 being thus brought intosuperficial contact therewith, the sash is thereby prevented from movingeither up or down, the eccentric at the same time allowed to yield to anextent in both directions, so that the force applied to open the sashtends only to increase the pressure of the eccentric on the sash.

In some cases the double eccentric can be dispensed with and the stopprovided with a fixed working-face or a single eccentric can be used.

I claim- The combination, substantially as hcreinbefore set forth, ofthe pivoted self-retractingfriotion-stop,the revolvingcam actingon suchstop, and the rocking spring-sustained double eccentric formingtheworking-face of the stop, for the purpose specified.

.In testimony that I claim the foregoing I have hereunto set my handthis 14th day of October, 1881.

Witnesses: HENRY A. STONE.

FRANCIS CLARE BOWEN, EDGAR GARRETSON.

